89438690 has 32 divisors (see below), whose sum is σ = 178614720. Its totient is φ = 31969600.

The previous prime is 89438677. The next prime is 89438693. The reversal of 89438690 is 9683498.

It is a super-2 number, since 2×89438690² = 15998558537832200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (89438693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 401 + ... + 13380.

It is an arithmetic number, because the mean of its divisors is an integer number (5581710).

Almost surely, 2^89438690 is an apocalyptic number.

89438690 is a deficient number, since it is larger than the sum of its proper divisors (89176030).

89438690 is a wasteful number, since it uses less digits than its factorization.

89438690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13858.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 89438690 is about 9457.2030749054. The cubic root of 89438690 is about 447.2068802325.

The spelling of 89438690 in words is "eighty-nine million, four hundred thirty-eight thousand, six hundred ninety".